10g of ch4 is combusted in a calorimeter that has an empty
10g of CH4 is combusted in a calorimeter that has an empty heat capacity of 18 J/C. The calorimeter contained 150 g of water. If the temperature changed from 25.2C to 30.3C. Calculate the molar heat of combustion of methane in J/mol
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what happens to speed of sound in air if you quadruple the temperatur of the air, How many times larger does it become
Given pKa (acetylene) = 25 and pKa (H2) = 35, predict whether the direction/ position of equilibrium in the following reaction will lie to the right (favors the forward reaction) or to the left (favors the backward reaction)?
The distance between successive crests of a sound wave is 33m. what is the approximate frequency of the sound wave
A string with a length of 3.0 m has two adjacent resonances at frequencies 112 Hz and 140 Hz. What is the wavelength of the first harmonic
Balance by the compass rule the departures and latitudes listed in the following closed-polygon traverse. Calculate the linear misclosure, relative precision, and adjusted lengths and bearings
A guy is spinning initially at a constant rate with his arms at his sides. He then puts his arms straight out. How much does his moment of inertia change when he sticks his arms out
A bar of length .15 m, width .05 m and negligible height is spinning about its center of mass at 2 radians per second. what is their final angular velocity
The formula needed to solve this problem. Calculating equilibrium concentrations of all three substances: N2(g) O2(g) <--> (equilibrium arrows) 2NO
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